World War, 1939-1945 History 21 Concentration camps 11 Holocaust, Jewish (1939-1945) 9 Politics and government 7 Foreign relations 5 Guerra mundial 5 more ... Concentration camp inmates 4 Underground movements 4 Atrocities 3 Guerrillas 3 History, Military 3 Jews 3 Art and the war 2 Criticism and interpretation 2 Diplomatic history 2 Ethnic relations 2 Fascism 2 Fascismo 2 Guerra mundial, 1939-1945 2 Influence 2 Intellectual life 2 Jewish resistance 2 Nazis 2 Political aspects 2 Prisoners and prisons 2 Prisoners and prisons, German 2 Refugees 2 Relaciones internacionales 2 Social aspects 2 less ...